Home / 5,768.80-8,653.20-5,428.60

Finding the Fourth Proportional to 5,768.80, 8,653.20 and 5,428.60

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Solution

The fourth proportional to 5,768.80, 8,653.20 and 5,428.60 is: 8,142.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,768.80 : 8,653.20 = 5,428.60 : x
  2. Step 2: Convert to fraction form
    5,768.80/8,653.20 = 5,428.60/x
  3. Step 3: Cross multiply
    5,768.80x = 8,653.20 × 5,428.60
  4. Step 4: Simplify right side
    5,768.80x = 46,974,761.52
  5. Step 5: Solve for x
    x = 46,974,761.52/5,768.80
  6. Step 6: Final answer
    x = 8,142.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.